咖啡豆訂閱續約升級提案（年度回顧信）

prompt

Write a renewal-and-upsell proposal for {cafe_name} to {client_company}, whose office coffee bean subscription ends on {renewal_date}. Open as a year-in-review: recap kilograms delivered, their most-reordered roast {favorite_roast}, and zero missed deliveries, turning data into proof of reliability. Then present renewal paths side by side: same plan at the locked current price, and an upgraded plan adding {upgrade_offer} for a modest increase, with the upgrade visually framed as the better-value column. Add a loyalty thank-you perk for signing before {renewal_date}. Warm, relationship-first tone with light numbers, under 300 words, formatted as an email the cafe owner can send today.